Protecting device for electric conductors.



M. H. LOUGHRJDGE. PROTECTING DEVICE FOR ELECTRIC CONDUCTORS.

APPLICATION FILED AUG Patented Feb. 15,1916.

THE COLUMBM PLANOGRAPH cu., WASIHNGTON. D, c.

+ mTED-sT s OFFICE&

y MATTHEW H. LOUG-RDGEQIOF NE YORK', Ng Y.

PROTECTING 'DEvIcE ron ELECTRIC ,CONDUCTORSL TO aZZ whom it may concem Be it known that I, MATTHEW HARKNESS e LOUGHRIDGE, a citizen of the United States,

and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented anew and Improved-'Protecting Device for Electric Coni ductors, of which the following is a full, clear,` and exact description.

My invention'relates to protectng devices e for conductors, and particularly the ends of conductors which' are led under ground; and

the object *thereof isto provide a devicebf the kind described which will form an 'eflicient shield for the end of the said conductor at the point where` it emerges from the ground, and prevent' the' same from being injured, and guard against the'admission of water to the Conduit or other covering of insulation in which the conductor tself's located. i r i V Reference is to be had to the accompany V ing drawings forming a part of ths specfip cation, in which the same characters of reference indicate the same parts in all the views; v p

'Fgure 1 s a V1eW showing the manner v' in which my protecting device is appliedto i an enlargedscale, showing the entire in the end of a conductor at the point where it leaves the ground, part of the Construction being shown in section and part in elevation; Fig 2 is a vertical sectional view on terior Construction of thetop of my protecting device; Fig; 3 is a topplan; Fig. 4 is a side elevation of the top of my improved protectingdevice; and Fig. 5 is a top plan of a modification, showing another form in which the top of my protector can be secured in place. r v

` My i invention jcomprises an' envelop of porcelain or concrete, indicatedat lg which is shaped like the frustum ofa pyramid,

and' is provid`ed with a tapered hollow bore to give passage to a covering or conduit 5 containing@ conductor 4. This' conduit is not supported rigidly within the bore of the envelop 1, but is loosely Secured therein and is therefore free to expand or vibrate, ac cording to the' infiuenceofchanges in tem perature and the movements of the ground. y

protecting device asillustrated in Fig. 2, it

will be seen that the Conduit rises above the The bore has its 'largest diameter atits lower end, so that any movement of the en- Specification of Letters ment. Pathted e `15, 1916 Application filed August 18, 1911; Serial No. 644346. i

is held rigid in. coming'out of the ground.

A clear air 'space is provided through the' bore between the conduitor covering &and the envelop; so that shocks or blows willbe absorbed by the protecting envelop and will V g not betransmitted to the covering 5.

2 represents a cap which is preferably r made of metal and is shaped so as to be hollow, so that, when the cover is placed on the top of thev'envelop l, it'will allow the con-` of the cap. i Thistcap has a flange 2 which rests 'upon the top of the envelop l, and

g The fiange 2 "s recessed to permit the passage of a number of studs T 'T and '7 which are ein-f bedded in the envelop 1, and these studs are' perforated at theirupper ends to give pas:

which also has a recess?) injits edge,' through which the'` conductor 4 passes.

sage to `a loop of wire 8, the ends ofwhich and 4:. ,Thiswire 8 will engage the top surface of theflange 2? and hold the cover or r cap against displacement The conductor 4 will of course have a covering of insulation, and a boss or PI'OJGCtlOIl shown at 3" may be formed on the side of the cap 2, thisboss being hollow to permit a more convenent formation of the recess 3, into which the insu lated conductort fits when the cap and the conductor are in place. V v

In Figs 5, 7 and are studs, and the flange 2? of the` cap hasa pair of lugs spaced apart toreceve the stud 7 between them. These lugs are perforated and through jthem is passed a pivot pin 12% whichalso enters the aperture in the outer end of the stud 7 is passed a pin 12 which holdsthe cap 2 down; 'and whenever the .pin 12 is removed,

the covercan be revolved about the pin 12 as a hinge. This forn shows two conductors 4:' and & passing out through recesses Through the other stud are twisted together," as shown in Figs. 3

lOO

3 and' 3%* formedin bosses 35 and 3@ The constructionis the same otherwise as in the form showngin the first sheet of drawings,

From the interier constructiongof my top of the envelop 1, and that the conductor the side of the protecti ng' device, ;the level of the lower edge ofthe cap 2. As a result, Water entering the protecting device at the joint` between the envelop and the cap does not get into the Conduit 5 ,'but instead vfiows into theopen space between theconduit and thecap: Hence,` any danger of the cable being damaged or otherwise interfered With in its operation by" moisture is reduced to a minimum. The eonstruction of the form shown on Fig ssmilar. The envelop surrounding `the condut lS buredin the i earth so as to' beof sufiicient stability te re- Way systems. :It is obvious, however, that I sistshocksfrom theoutside.` My improved protecting. device is t intended particularly 'or those ,types of conduits which are me ehanically weak or=are in .exposed places, such ason railroadtracks, and I have illustrated' such a trackatlO on Figl, and shownthe conductor l connected thereto, this track being an ordinary 'third rail, such as-is connonly used on surface electric railmay use it in anyrelation involvinga con'- ductor mclo'sed n a; coverng'or'r conduit which is buried under 'the ground'and eaused A to emergethrough the surface of the ground at any given point,tiand I may employ'either iron or concrete for theenvelop :1, as conditions may dietate. i i

From the above description it will be apparent that I have deviseda new .and useful p v protectmg devce for electrc conductors of superior practical advantage and superior Simplicity in constructiongan d 'I :Wish to have it understood that Ido not care to be limited to, the details 'shown and desc`ribed,

except in so far' esthe same are made material bythe termsof the claims appended thereto. V

'Having thus described my invention, I clain as new and desire to secureby Letters Patentz i l. A protecting device for electric conductors com jrisin an envelo 3 havin an o en- 3 1: V v E:

ended bore therethrough; a` Conduit; a hollow cap covering one end of said envelop,

said cap having a supporting fiange provided with a plurality of recesses andhav ing a lateral passage for 'said conductor; perforated studs passing through said recesses and embedded in said en velop; and

means engagingsaid studs to retain said cap in place. p i e '2. A protect ng ClGVlCQOl electrc conduits, conprising an envelopembeddedin a supporting medium and havingfa bore therethrough to receive said conduit; a, hollow cap for the guter end of' said envelop, "Stld cap 'having .a supporting fiange provided i With recesses; 'means rigid I in said tenvelop and engaging saidvirecesses; and` looking means engagng said last-mentoned means Copies ef this patentmay be obtained fer five cents each, byfaddres 'washi on,c f

A -.`(leVlCe as characterized,'comprsing a ,Weighted envelop having a frusto-conical i' 'ermed body of solidmasonry, said body having an axially-disposech tapered passage u thewall of -said body 'being increased in lowering the center of gravity in said body;

I v V `thicknesstoward the lower end thereof for i a tubularconduit-having a vertical c'ylindrit cal entenson looselyfitting 11 1' said tapered passage and supported independently of cover for said Conduit; i i

open-ended* bore therethrough; a vertical and of smaller diameter," the`-envelop and i said' frusto-conical body; and a' removablei v e 4:; A protecting deviee for electrioconductors.comprsing an i envelcp havng an di tubular Conduit extending through said bore Conduit being independently supported and I' i movable rel'atively one to the other,^electri- ;cal cencli1ctors loosely placed within e said Conduit; and' a hollow cap supported by said envelop and eoverng the -eXposed opening ofsaid bore and the end ofsaid Conduit.

5. 'A protecting device' for the outlets of aj' systenr of under-ground tubular condui te; comprising a weighted*'envelop supported,

independently of the Conduit and having' a trusto-Comical 'body With the greaterweight in thetlower end, saidi body having a. bore therethroughto recevethe ends of sad con duit, said bore being oflarger diameter than" ently of the Conduit and having a bore there-' through to receive the end of said conduitg said bore being ,of larger diameter than said 'Conduit and the exposed end of.` said Conduit beingprotected With'a renovable cap.

7. The eonbination of an outer-`protecting i device of'a frusto-conical design resting on tsfibase'in the ground and'havinga bore therethrough; an inner tubular protecting condut,` jsaid conduit' extending 'through but ofsnaller diameter than said bore; the dei-'ice :andconclut being independently sup-' ported; electric eonductors lo'osely placed Y within said'conduit; `and a hollow cap sup- 'portedby said outer device andisaid Conduit terminating within said cap.

n.. LOU nIDG j f MATTHEXV NVitnesses; i JAMEsMCGR GOR a v Himni' *GOLDFARBp t g sa the. fcoinniiss iener of' Patents., 

